operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes

Full Title

Geothermal collectors > operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

HEATING; RANGES; VENTILATING

Subclass:

GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS